Hinged last.



G. A. MINZEY.

HINGED LAST.

APPLICATION FILED P21242. 191s.

1,1 20,324. Patented Dec. 8, 1914 @www 6 'since'the adi-'ent of the hinged last..

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GEOBGEALMON Minze?, or Bewaren, aressaonosmrs, assi'oiaonre nimeer o.

` WEIGHT, or Bano-aren, MASSACHUSETTS..

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pplicationiled February l2, 1.813* Serial )fioA @7,945

Toall wlaom'it may concern-z ,1

Be it known that I, GEORGE ALMON MIN- ZEY, a citizenof the United States, and resident of Broektom 'county of, Plymouth, State of Massachusetts, have Ainvented San Improvement in Hinged Lasts,. 'of which the following description,V in. eonnectior. liviththe accompanying drawings, is a speciicatiox'iflikefletters on the drawings repre` senting like parts.

In the manufacture of shoes by the aid of hingedY lasts, it is very essentiai that the last shall be exceedingly strong at he joint, in order to endure the ievelinI pressures andi' other strains brought upon the last, especially when it is bottom side np. This groblem has` proved so diiiieult that it has een the airnof a gre-aiJ many inventors ever My invention aims to solve this problem in connection with'the type of last consisting of a forepart and heel part transversely severed byf'lines of cut forming an upper V- shaped Agrap to permit the heel part to swing upwardly on the forepart.l

If'ai'ni .to secure the great strength desired by alioiding cutting away the wood of the :last as' much as possible,A and by providing a rod' like hinge mounted in eonneetion with the heel thimble and1E C. TvV. boit, so as to give a -branch .support and resistance in the 'solid Wood of the heei part, my pref fel-red construction aise including a rec.- tangular transverse ledge or corner of the forepart seated within a rentrant angle or corner 'ofthe heel part (when the last is eX- tended') for resisting twisting strains in con necti'oxi with said B-branch Construotion' 'in the heel..

In the drawings, Figure l a preferred form of my last in side eievaion partly broken away for olearness of illus tration; Figi is .a horizontai sectionai View, takennin line with the connecting rod and Fig'. 3 is a view similar to Lv of anotherernbediment of my invention.

The 'forepart l and =neei part 2 have their adjacent ends 3, 4,` ont aibn? iines to provide a rectangular bearing at 5, with abutting portions 6 extending from that'point downward. Connecting these two parte is a cylindrical member 7, preferably in he form of a solid rod tting snugly into a hole bored lengthwise into the heel part, and mounted at the forepart on a stesi pintle pin pressure Specication of Leiters Parent.

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8 tot-urn when the heel part is swung upwardly, the hole in the orepart being" formed indicated at '9 to permit lof this" swinging movement.. The rear end ofthe.

'rod member "I is secured b fianli. C. 'W52 bot- SLO (having the construction and ad-V Xfantagesset forth. in U. S.4 E atentsfiios 605,763, une l, 1898, and 642,945, Feorw ary l'l.

which is forced dowrfjnndergreat from tne dotted position l2, so as Directly under tlie'heel thini-` I to pnt all three members 111,10, and 7, under more or less compression Strain with rela tion to the Wood of the heel part. The forepart andl heel para will preferably he held extended by any suitable inea-ins`v as, for ample, oy a spring l 'I i ln the construe-tion shownin Fig@ 3 the internal construction is very nearly the saine of ent which severs the forepart from the heel part is slightly diiarentV so as to form a knuckle 14 at the rear end of the orepart seated within a sooketl .at the front end of theheel part, and' the pintle 8Y is raised 4higher in the orepart thanit isin Figs-1 and 2, in order to bring the two points 8 and as aiready described, excepting that the line i0 more radically out of line with the grain Y of the Wood than in the other construction, and also so astro have the l)ivotal` oint in the oreparteccentri: to the Enuekie. Qtherwise the Construction in bot-ii forms of my invention is the same.

In operation it will be seen that not ony is the heel portion of thelast 'cutaway to a, minimum degree, inasmuohes the Wood is integral or lnncut entirey around the rod member Y, which no play or movement therein whatever, but the union has a 3 branch reen .ice in theV heel member in connection ihn-n the thimhie. The result ias'r very great strength to re firing .fitiains. auch those pr@ drifted by Lie leveling machine, fer elx'arnpe.

steel pin 8 preferably to tighten the parts together when in 'ted In both forms of my invent-ion the opens freely, inasmuch the oontacing 'ends of the orepart and heei'p-art imrnefiiately more ont of engagement. with each other soon as the heel part is fiexed up wardlv. .The great advantage, however, of the last resides in the Strong heel construetion and the Z-branch support which the hinged member or rod 7 has beneath the lil" thimble 11; Even if .the rod should tend to wear loose in its tight recess, this tendency would be. prevented by the unyielding engagement therewith of the thimble 11. This thimble is always bearing upon the jack spindle of the machine on which the last is supported whenever any breaking strains are being applied to the bottom of the last, and accordingly the resistance of the jack and of the jack spindle is thus transmitted through the thimble to thc 8- branch anchorage against which the thimble presses.

Having described my invention, what I :claim as new and desire to secure by Letters Patent is:

A hinged last, having a orepart and a heel part, a thimble in said heel part, and a three-branch supporting' nleaiis' for said thimble, consisting of a cylindrical member Connecting the forepart and heel part, having one end portion pivotally fitted in the forepart, and the other end portion rigidly fitted in the heel part and extending under the thimblc, and a tension bolt under the thimble passing through the heel part and said cylindrical member, whereby Said thimble is supported by the tension bolt and the cylindrical connecting member.

In testimony whereof, I have Signed my name to this specification, in the presence of two subscribing Witnesses.

GEORGE ALMON MINZEY. Witnesses:

EDWARD MAXWELL, R. G. HERSEY. 

